Keysight x-series Programmer's Reference

3 VMA Mode
3.1 Digital Demod Measurement
Trace Data SCPI Description
Error Vector
Time
EVTime
Vector difference between IQ Meas Time and IQ Ref Time at each point in time
Error Vector
Spectrum
EVSPectrum
FFT of Error Vector Time
Mag Error
MERRor
Difference in length of the IQ Meas Time vector and IQ Ref Time vector at each
point in time
Phase Error
PERRor
Difference in phase of the IQ Meas Time vector and IQ Ref Time vector at each
point in time
EQ Impulse
Response
EQIResponse
Impulse response of the adaptive equalizer (no data is available if equalizer is off)
CH Freq
Response
CHFResponse
FFT of Equalizer Frequency Response
Metrics
DRESults
Demodulation metrics results
Demod Bits
DBITs
Demodulation bits
Eye Diagram
Metrics
ERESults
Eye Diagram metrics results
ccEVM vs
Symbol
CESymbol
ccEVM per symbol trace
No Data
NONE
Blank Trace
Pre Demod
Displays the trace data choices that show pre-demodulation results.
Raw Main Time
Raw Main Time is the envelope of the captured raw data. This data is unprocessed
and includes additional points acquired for settling of the filters involved in
subsequent processing, such as the demodulation filtering.
Example
:DISP:DDEM:WIND2:DATA RMT
Sets the second window data to Raw Main Time
Search Time
Search Time is the envelope of the data which is used to search for the burst or sync
pattern. It’s generated from the captured raw data according to the Trace Align
settings.
Example
:DISP:DDEM:WIND2:DATA STIM
Vector Modulation Analyzer Mode User's &Programmer's Reference 214

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)